Fix minor glitches in .txt output

tzselect.8

@@ -4,6 +4,16 @@ tzselect \- select a timezone
 .SH SYNOPSIS
 .ie \n(.g .ds - \f(CW-\fP
 .el .ds - \-
+.ds d " degrees
+.ds m " minutes
+.ds s " seconds
+.ds _ " \"
+.if t .if \n(.g .if c \(de .if c \(fm .if c \(sd \{\
+.  ds d \(de
+.  ds m \(fm
+.  ds s \(sd
+.  ds _ \|
+.\}
 .B tzselect
 [
 .B \*-c
@@ -57,11 +67,11 @@ seconds, with any trailing fractions represent fractional minutes or
 is present) seconds.  The decimal point is that of the current locale.
 For example, in the (default) C locale,
 .B "\*-c\ +40.689\*-074.045"
-specifies 40.689\(de\|N, 74.045\(de\|W,
+specifies 40.689\*d\*_N, 74.045\*d\*_W,
 .B "\*-c\ +4041.4\*-07402.7"
-specifies 40\(de\|41.4\(fm\|N, 74\(de\|2.7\(fm\|W, and
+specifies 40\*d\*_41.4\*m\*_N, 74\*d\*_2.7\*m\*_W, and
 .B "\*-c\ +404121\*-0740240"
-specifies 40\(de\|41\(fm\|21\(sd\|N, 74\(de\|2\(fm\|40\(sd\|W.
+specifies 40\*d\*_41\*m\*_21\*s\*_N, 74\*d\*_2\*m\*_40\*s\*_W.
 If
 .I coord
 is not one of the documented forms, the resulting behavior is unspecified.

zic.8

@@ -28,6 +28,16 @@ zic \- timezone compiler
 .  ds :
 .  ds - \-
 .\}
+.ds d " degrees
+.ds m " minutes
+.ds s " seconds
+.ds _ " \"
+.if t .if \n(.g .if c \(de .if c \(fm .if c \(sd \{\
+.  ds d \(de
+.  ds m \(fm
+.  ds s \(sd
+.  ds _ \|
+.\}
 The
 .B zic
 program reads text from the file(s) named on the command line
@@ -807,9 +817,7 @@ In this example, the timezone is named Europe/Zurich but it has an alias
 as Europe/Vaduz.  This example says that Zurich was 34 minutes and 8
 seconds east of UT until 1853-07-16 at 00:00, when the legal offset
 was changed to
-.ds o 7 degrees 26 minutes 22.50 seconds
-.if \n(.g .if c \(de .if c \(fm .if c \(sd .ds o 7\(de\|26\(fm\|22.50\(sd
-\*o,
+7\*d\*_26\*m\*_22.50\*s,
 which works out to 0:29:45.50;
 .B zic
 treats this by rounding it to 0:29:46.